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ASTM A514 Steel vs. 8011A Aluminum

ASTM A514 steel belongs to the iron alloys classification, while 8011A aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ASTM A514 steel and the bottom bar is 8011A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 250
25 to 50
Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 18 to 21
1.7 to 28
Fatigue Strength, MPa 470 to 540
33 to 76
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 790 to 830
100 to 180
Tensile Strength: Yield (Proof), MPa 690 to 770
34 to 170

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
400
Maximum Temperature: Mechanical, °C 400 to 440
170
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
630
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 37 to 51
210
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.6
56
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.8
180

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 3.8
9.0
Density, g/cm3 7.8 to 7.9
2.7
Embodied Carbon, kg CO2/kg material 1.6 to 1.8
8.2
Embodied Energy, MJ/kg 21 to 25
150
Embodied Water, L/kg 48 to 57
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 170
3.0 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 1280 to 1590
8.2 to 200
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 28 to 29
11 to 18
Strength to Weight: Bending, points 24 to 25
18 to 26
Thermal Diffusivity, mm2/s 10 to 14
86
Thermal Shock Resistance, points 23 to 24
4.6 to 8.1